Routing Caps for Hex Rod Cases

I've made a few hex rod cases.  They're fairly simple to make.  But I've struggled with making the end caps safely.  Routers and small pieces of wood scare me.  So I've been using the sled on my table saw to get close to finished dimensions without risking losing a finger.  But I found this cool video doing research for a guitar project.  I haven't tried it yet, but this should work perfectly.  I'll just cut a little off each end of the glued up tube and use it as a guide to route the caps.  Watch the video and that should make sense.